How automotive HVAC systems work | ACDelco

How automotive HVAC systems work | ACDelco


Most HVAC concerns occur when you least expect it, and often at the most inconvenient times.
No heat to defrost the windshield? Roasting in the summer heat?
The vehicle’s heating, ventilation and air
conditioning system is composed of three sub-systems
that all work together to provide conditioned
air to the vehicle cabin.
The heating part takes heat from the engine coolant and transfers it to the incoming air.
The ventilation part moves and directs the
air within the cabin.
And the Air Condition part cools and dehumidifies
the air within the cabin.
When they are working normally they keep you
comfortable during all weather conditions.
Key components of the Heating Ventilation
and Air Conditioning system include:
Heater Core, Thermostat, Blower fan, HVAC
Controls, Condenser, Compressor and Evaporator.
Leaks, worn or malfunctioning components can
cause a loss of heat, poor or no air flow,
insufficient cool air, noises or objectionable
odors.
Coolant leaks can also cause engine overheating
which can severely damage the vehicle’s engine.
Before the weather gets too hot or cold have
your vehicle checked. Visit your local ACDelco
service center for expert service and quality
parts.


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